Lamp burnee



(No Model.)

n 2 Sheets-Sheet l". O. SCHWINTZER & 'W. GRAPF."

LAMP BURNER.

Patented Dec. 4, l883.

"INVENTORS f ATTOR Y8.

I WlTNESSES: a :3 V

(No Model.) I 2 Sheets-Sheet 2.

C. SUHWI-NTZER & W. GRAPE.

LAMP BURNER. No. 289,571. PatentedDec. 4, 1883.

VENTORS ATT Y3.

WITNESSES:

rrE

CARL sOHWINTZER AND -WILHELM GRAFF, or BERLIN, GERMANY, AssIeNoRs OF QNE-HALF TO J. E. DONNELL & 00., OF NEW YORK.

LAMP-BURNER.

SPECIFICATION forming part of Letters Patent No. 289,571, dated December 4, 1883.

Application filed July .28. 1883. (No model.) Patented in Germany November 14, 1879, No. 10,621, January 13, 1880, No. 10,846, and

March 26, 1880, No. 11,713. i

.To all whom it may concern:

Be it known that we, CARL SoHwINTzER tofore been granted to us by the government of Germany, No. 10,621, dated November 14, 1879, No.10,846, dated January 13, 1880, and No. 11,713, dated March 26, 1880,) of which the following is a specification.

This invention has reference to an improved lamp-burner of that class in which a series of wick-tubes are arranged equidistantly from the axis of the burner, and moved up and down in a series of guide-tubes, the burners of said class being known by the name of mitrailleuse burners; and the invention consists of a ring-shaped cap arranged at the upper part of fixed guidetubes, said cap being provided with openings for the wicks. The pinion by which the wicks and wick-tubes are adjusted is placed entirely within an annular casing of the burner, and is rendered accessible by a detachable ring at the lower part of said casing. The actuating-pinion engages a rack-bar that is attached by an inwardly-extending arm to the center of the bottom plate of the wick tubes, said rack being located between two adjoining wick-tubes. The bottom plate of the wick-tubes is provided with a hinged stop de vice, so as to prevent the wick-tubes from projecting above the guidetubes and thereby avoid the burning of hooks arranged at the upper ends of the wick-tubes.

In the accompanying drawings, Figure 1 represents a side elevation of my improved burner. Fig. 2 is a vertical central section of the same; and Figs. 3, 4, 5, and 6 are horizontal sections, respectively, on lines o c, Fig. l, and m w, y y, and z 2, Fig. 2.

Similar letters of reference indicate the corresponding parts.

In the drawings, A represents an annular cas ing which encircles a series of fixed guidetubes, 0L a,that are arranged equidistantly from the axis of the burner. To the upper ends of the guide-tubes a a is attached a ring-shaped cap, a, which is provided with openings for the wick and wick-tubes b b. r The ring-shaped cap acloses the intermediate space between the upper ends of the tubes at a, so as to pro tect not only the upper ends. of the guidetubes against being burned by the flame, but also produces a'continuous and even flame, which would not be the case if direct access of air be given to each wick. The inner flange of the ring-shaped cap a is much shorter than the outer flange, so that the air that" is drawn through the interior of the burner and structed as little as possible, while the larger outer flange conducts the air to the outer surface of the flame. At its lower part the easing A is furnished with a detachable ring, A, that is screwed over the threaded portion of said casing. The threaded portion serves, also,

fed to the inner surface of the flame is obfor the purpose of screwing the burner into the collar of the neck of the oil-receptacle.

On a shoulder of the casing A a gallery of the usual construction is supported, by which air is conducted to the wicks and asupport is furnished for the chimney. the casing A are arranged bearings b for a pinion-shaft, 6 which is extended laterally At the inside of through an opening of the casing, and provided at the outer end with the usual milled head. A pinion, O, is fastened to the shaft b intermediately between the bearings 12, and is entirely inclosed by the casing A, but readily accessible for repairs by means of the detachable screw-ring A. vertical rack, O, which is located between two adjoining wick-tubes, a a, and provided with an inwardly-bent arm that is attached to the center of the bottom plate, D, of the wicktubes. By thus securing the inwardly-extend- 1 ing arm of the rack O to the center of the bottom plate, the easy and regular up-and-down motion of the wick-tubes is secured, while side strains that might interfere with the easy motion of the wick-tubes in the guide-tubes are obviated. The wick-tubes I) Z) are moved up and down in the guide-tubes a a by the action of the rack and pinion, the motion of the rack The pinion bengages a 0 being steadied by openings in the top and plate, D, of the wick-tubes is applieda hinged stop device, E, which can be thrown in vertical or horizontal position, as shown in Fig. 2. When in vertical position, the stop E abuts against the bottom plate of the casing A when the wick-tubes are raised to that extent, and prevents thereby the upper ends of the wick-tubes from projecting above the upper ends of the guide-tubes, thereby avoiding the burning of the wick-holding hooks at the upper ends of the wick-tubes. In this position the stop E is retained by means of its hookshaped upper part, which is pressed between two adjoining wick-tubes, as shown in Fig. 1, and thereby retained in position. When wicks d are to be inserted into the wick-tubes b b, the stop device E is placed in a horizontal position, as shown in dotted lines in Fig. 2. The pinion O is then turned and the wick-tubes b I) raised until their upper ends are caused to project above the guide-tubes a a, so that the wicks can be readily drawn in by a suitable device for this purpose.

Theadvantages of our improvements are that they give a continuous flame, that they obviate the necessity of providing a special casing for the pinion, and also furnish ready access to the latter. The rack is preserved from injury by being placed between two of the wick-tubes,

while the stop device prevents injury to the hooks at the upper ends of the wick-tubes, which would render the burner useless.

Having thus described our invention, we claim as new and desire to secure by Letters Patentnular inclosing-casing made of a fixed portion and a detachable ring-section, whereby ready access is given to the pinion, substantially as set forth.

3. In a lamp-burner of the class described, the combination of asystem of wick-tubes connected by a bottom plate, a series of guidetubes, means for raising or lowering the wick tubes, and a stop device hinged to the bottom plate and adapted to be thrown into vertical or horizontal position, so as to serve either as a stop for the wick-tubes or admit their being raised above the guide-tubes for inserting the wicks, substantially as specified.

In testimony that we claim this as our own invention we have hereunto set our hands in the presence of two subscribing witnesses.

CARL SOHWINTZER. WILHELM GRAFF.

Witnesses:

B. R01, G. H. SMITH. 

